What the most Illegal thing you've done

I once bus surfed with a couple of friends. We waited until a bus came to the station and right as it started to close it's doors we jumped onto the back of it and just hanged on the back of the bus with our feet on it and our hands placed in an indentation from some sort of trapdoor. We just stayed there untip we got to the second station and we just got off and ran away. Apparentlysomeine from a car that was behind the bus called the police and they found us. We each got fined for that. I still don't regret it lol